/* ===== 掌银科技官网 - 全局样式 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #1B5CE8;
  --primary-light: #EEF3FE;
  --primary-dark: #1448C0;
  --accent: #0EA97B;
  --accent-light: #E8F8F3;
  --wechat: #07C160;
  --alipay: #1677FF;
  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --bg-page: #F8FAFC;
  --bg-white: #FFFFFF;
  --bg-gray: #F3F4F6;
  --border: #E5E7EB;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-sm); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}
.logo-icon { font-size: 22px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-main { font-size: 17px; font-weight: 700; color: var(--text-primary); letter-spacing: 0.02em; }
.logo-sub { font-size: 11px; color: var(--text-muted); font-weight: 400; letter-spacing: 0.05em; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  padding: 6px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: var(--primary); background: var(--primary-light); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(27,92,232,0.3);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}
.btn-white {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.btn-white:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}
.btn-full { width: 100%; }

/* ===== 通用区块 ===== */
.section { padding: 80px 0; }
.section-gray { background: var(--bg-gray); }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}
.section-title {
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
  line-height: 1.3;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* ===== 首页英雄区 ===== */
.hero {
  padding: 130px 0 80px;
  background: linear-gradient(135deg, #F0F6FF 0%, #FAFCFF 60%, #F0FEF7 100%);
  overflow: hidden;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.hero-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.text-accent { color: var(--primary); }
.hero-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-bottom: 44px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 28px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  width: fit-content;
}
.stat-item { text-align: center; }
.stat-num { display: block; font-size: 22px; font-weight: 800; color: var(--primary); }
.stat-label { display: block; font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.stat-divider { width: 1px; height: 36px; background: var(--border); }

/* 英雄区视觉 */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.payment-card {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 28px;
  width: 280px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  position: relative;
  z-index: 1;
}
.card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.card-dot { width: 8px; height: 8px; border-radius: 50%; }
.card-dot.green { background: var(--wechat); }
.qr-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  background: var(--bg-gray);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}
.qr-inner {
  width: 120px; height: 120px;
  border: 3px solid var(--text-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: var(--bg-white);
}
.qr-logo {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  background: white;
  padding: 3px 6px;
  border: 2px solid var(--primary);
  border-radius: 4px;
}
.qr-tip { font-size: 12px; color: var(--text-muted); margin-top: 10px; }
.pay-icons { display: flex; gap: 8px; justify-content: center; }
.pay-icon {
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
}
.pay-icon.wechat { background: #E8F9EE; color: var(--wechat); }
.pay-icon.alipay { background: #EBF4FF; color: var(--alipay); }

.floating-badge {
  position: absolute;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 7px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}
.badge-1 { top: 10%; right: 0; }
.badge-2 { bottom: 30%; right: -10%; }
.badge-3 { bottom: 10%; left: 0; }

/* ===== 合作伙伴 ===== */
.partners {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-white);
}
.partners-title {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}
.partners-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.partner-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.partner-icon {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.partner-icon.wechat-color { color: #07C160; }
.partner-icon.alipay-color { color: #1677FF; }
.partner-icon.union-color { color: #E60012; }
.partner-sub { font-size: 11px; color: var(--text-muted); }
.partner-divider { width: 1px; height: 36px; background: var(--border); }

/* ===== 产品卡片 ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}
.product-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.product-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.product-icon svg { width: 26px; height: 26px; }
.icon-blue { background: var(--primary-light); color: var(--primary); }
.icon-green { background: var(--accent-light); color: var(--accent); }
.icon-purple { background: #F3EEFE; color: #7C3AED; }
.icon-orange { background: #FEF3EA; color: #EA580C; }
.product-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.product-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; }
.card-link { font-size: 14px; font-weight: 600; color: var(--primary); }
.card-link:hover { color: var(--primary-dark); }

/* ===== 优势 ===== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.advantage-item {
  padding: 28px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.advantage-item:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.adv-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.advantage-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.advantage-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ===== 行业 ===== */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 16px;
}
.industry-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-white);
  transition: all var(--transition);
  cursor: default;
}
.industry-item:hover { border-color: var(--primary); background: var(--primary-light); }
.industry-icon { font-size: 28px; }
.industry-item span { font-size: 12px; color: var(--text-secondary); font-weight: 500; white-space: nowrap; }

/* ===== CTA ===== */
.cta-section {
  background: var(--primary);
  padding: 72px 0;
}
.cta-content { text-align: center; }
.cta-content h2 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.cta-content p { font-size: 16px; color: rgba(255,255,255,0.8); margin-bottom: 32px; }
.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-phone { font-size: 16px; color: rgba(255,255,255,0.9); font-weight: 500; }

/* ===== 页脚 ===== */
.footer { background: #0F172A; color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-main {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-logo .logo-icon { font-size: 20px; }
.footer-desc { font-size: 14px; line-height: 1.7; margin-bottom: 10px; }
.footer-domain { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-links h4, .footer-contact h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
}
.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; transition: color var(--transition); }
.footer-links a:hover { color: #fff; }
.footer-contact p { font-size: 14px; margin-bottom: 10px; }
.footer-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.badge {
  padding: 4px 10px;
  background: rgba(27,92,232,0.2);
  color: #93BCFF;
  border: 1px solid rgba(27,92,232,0.3);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.3);
}
.footer-bottom p { margin-bottom: 4px; }
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: rgba(255,255,255,0.7); }

/* ===== 子页面标题 ===== */
.page-hero {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, #F0F6FF 0%, #FAFCFF 100%);
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.page-hero-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
  background: var(--primary-light);
  padding: 4px 14px;
  border-radius: 20px;
}
.page-hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.page-hero-desc {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* ===== 关于我们 ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-intro-left .section-tag { margin-bottom: 14px; }
.about-intro-left h2 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 20px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.about-text { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px; }
.about-highlights {
  display: flex;
  gap: 32px;
  margin-top: 32px;
}
.highlight-item { text-align: center; }
.highlight-num { display: block; font-size: 26px; font-weight: 800; color: var(--primary); }
.highlight-text { display: block; font-size: 13px; color: var(--text-muted); margin-top: 4px; }

.about-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.about-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
}
.about-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.about-card-3 { grid-column: 1 / -1; }
.about-card-icon { font-size: 28px; margin-bottom: 12px; }
.about-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.about-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* ===== 发展历程 ===== */
.timeline { position: relative; max-width: 720px; margin: 0 auto; }
.timeline::before {
  content: '';
  position: absolute;
  left: 90px;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  display: flex;
  gap: 32px;
  margin-bottom: 36px;
  align-items: flex-start;
}
.timeline-year {
  min-width: 80px;
  font-size: 17px;
  font-weight: 800;
  color: var(--primary);
  text-align: right;
  padding-top: 4px;
}
.timeline-content {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  flex: 1;
  position: relative;
}
.timeline-content::before {
  content: '';
  position: absolute;
  left: -9px;
  top: 14px;
  width: 16px; height: 16px;
  background: var(--primary);
  border: 3px solid var(--bg-white);
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--primary);
}
.timeline-content h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.timeline-content p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ===== 价值观 ===== */
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.value-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
}
.value-card:hover { box-shadow: var(--shadow-md); border-color: var(--primary); transform: translateY(-2px); }
.value-icon { font-size: 36px; margin-bottom: 14px; }
.value-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.value-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ===== 资质 ===== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.cert-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
}
.cert-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.cert-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.wechat-bg { background: var(--wechat); }
.alipay-bg { background: var(--alipay); }
.tech-bg { background: var(--accent); }
.secure-bg { background: #7C3AED; }
.cert-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.cert-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* ===== 产品详情页 ===== */
.product-detail-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.product-detail-inner.reverse { direction: rtl; }
.product-detail-inner.reverse > * { direction: ltr; }

.product-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.product-detail-content h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.product-desc { font-size: 16px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 28px; }
.feature-list { margin-bottom: 36px; }
.feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
  color: var(--text-secondary);
}
.feature-item:last-child { border-bottom: none; }
.feature-dot {
  width: 6px; height: 6px;
  background: var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* QR收款模拟 */
.product-mockup {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}
.mockup-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: var(--bg-gray);
  border-bottom: 1px solid var(--border);
}
.mockup-dots { display: flex; gap: 6px; }
.mockup-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border);
}
.mockup-title { font-size: 13px; font-weight: 600; color: var(--text-secondary); }
.mockup-body { padding: 28px; text-align: center; }
.mockup-qr {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
}
.qr-grid {
  width: 140px; height: 140px;
  border: 3px solid #111;
  border-radius: 8px;
  background: #fff;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qr-corner {
  position: absolute;
  width: 28px; height: 28px;
  border: 4px solid var(--primary);
}
.qr-tl { top: 6px; left: 6px; border-right: none; border-bottom: none; }
.qr-tr { top: 6px; right: 6px; border-left: none; border-bottom: none; }
.qr-bl { bottom: 6px; left: 6px; border-right: none; border-top: none; }
.qr-center-logo {
  font-size: 14px; font-weight: 800;
  color: var(--primary);
  background: white;
  padding: 4px 6px;
  border: 2px solid var(--primary);
  border-radius: 4px;
}
.mockup-tip { font-size: 13px; color: var(--text-muted); margin-bottom: 14px; }
.mockup-pay-row { display: flex; gap: 8px; justify-content: center; }
.mpay {
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
}
.mpay.wechat { background: #E8F9EE; color: var(--wechat); }
.mpay.alipay { background: #EBF4FF; color: var(--alipay); }
.mpay.union { background: #FEF2F2; color: #DC2626; }

/* POS模拟 */
.pos-mockup {
  width: 240px;
  margin: 0 auto;
  background: #1F2937;
  border-radius: 16px;
  overflow: visible;
  padding: 16px;
  box-shadow: var(--shadow-lg);
}
.pos-screen {
  background: #111;
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 14px;
  text-align: center;
}
.pos-screen-header { font-size: 11px; color: rgba(255,255,255,0.5); margin-bottom: 6px; }
.pos-amount { font-size: 28px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.pos-status { font-size: 11px; color: rgba(255,255,255,0.5); }
.pos-keyboard { background: #374151; border-radius: 10px; padding: 12px; }
.pos-keys { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.pos-key {
  background: #4B5563;
  color: #fff;
  border-radius: 6px;
  padding: 10px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  cursor: default;
}
.confirm-key { background: var(--primary); }
.pos-base {
  height: 12px;
  background: #374151;
  margin: 10px 20px -6px;
  border-radius: 0 0 8px 8px;
}

/* 仪表盘模拟 */
.dash-mockup {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}
.dash-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}
.dash-title { font-size: 14px; font-weight: 700; }
.dash-date { font-size: 12px; color: var(--text-muted); }
.dash-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 20px; }
.dash-stat {
  background: var(--bg-gray);
  border-radius: var(--radius-md);
  padding: 14px;
}
.ds-label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.ds-value { display: block; font-size: 18px; font-weight: 700; color: var(--text-primary); }
.dash-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 80px;
  margin-bottom: 14px;
}
.chart-bar { flex: 1; }
.bar-inner {
  display: block;
  height: 100%;
  background: var(--border);
  border-radius: 3px 3px 0 0;
}
.bar-active { background: var(--primary); }
.bar-highlight { background: var(--accent); }
.dash-pay-breakdown { display: flex; gap: 14px; }
.dpb-item { font-size: 12px; color: var(--text-secondary); display: flex; align-items: center; gap: 4px; }
.wechat-dot, .alipay-dot, .other-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
}
.wechat-dot { background: var(--wechat); }
.alipay-dot { background: var(--alipay); }
.other-dot { background: var(--text-muted); }

/* 定制开发流程 */
.custom-dev-visual {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.dev-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 14px 0;
}
.dev-step-num {
  width: 36px; height: 36px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.dev-step-text strong { display: block; font-size: 15px; font-weight: 700; margin-bottom: 3px; }
.dev-step-text p { font-size: 13px; color: var(--text-secondary); }
.dev-arrow { text-align: center; padding: 4px; color: var(--primary); font-size: 18px; margin-left: 18px; }

/* ===== 价格卡片 ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.pricing-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  position: relative;
  transition: all var(--transition);
}
.pricing-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.pricing-featured {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), var(--shadow-md);
}
.pricing-hot {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 12px;
}
.pricing-type { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.pricing-target { font-size: 13px; color: var(--text-muted); margin-bottom: 24px; }
.pricing-rate { margin-bottom: 28px; }
.rate-num { font-size: 40px; font-weight: 800; color: var(--primary); }
.rate-unit { font-size: 14px; color: var(--text-muted); margin-left: 4px; }
.pricing-features {
  text-align: left;
  margin-bottom: 28px;
}
.pricing-features li {
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.pricing-features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== 联系我们 ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
  align-items: start;
}
.contact-info h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 12px;
}
.contact-intro {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}
.contact-item-list { margin-bottom: 32px; }
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.contact-item:last-child { border-bottom: none; }
.contact-item-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.phone-icon { background: var(--primary-light); color: var(--primary); }
.email-icon { background: var(--accent-light); color: var(--accent); }
.location-icon { background: #FEF3EA; color: #EA580C; }
.wechat-icon { background: #E8F9EE; color: var(--wechat); }
.contact-item-body h4 { font-size: 14px; font-weight: 700; margin-bottom: 3px; }
.contact-item-body p { font-size: 15px; color: var(--text-primary); font-weight: 600; margin-bottom: 2px; }
.contact-item-body span { font-size: 12px; color: var(--text-muted); }

.wechat-qr-box {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: var(--bg-gray);
  border-radius: var(--radius-lg);
}
.wechat-qr-placeholder {
  width: 80px; height: 80px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.wechat-qr-inner {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}
.wechat-qr-tip { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* 表单 */
.contact-form-box {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-md);
}
.contact-form-box h2 { font-size: 24px; font-weight: 800; margin-bottom: 8px; }
.form-intro { font-size: 14px; color: var(--text-secondary); margin-bottom: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.required { color: #E53E3E; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-white);
  transition: border-color var(--transition);
  font-family: inherit;
  outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27,92,232,0.1);
}
.form-group textarea { resize: vertical; }
.form-note { font-size: 13px; color: var(--text-muted); text-align: center; margin-top: 12px; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--bg-white);
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
}
.faq-question:hover { background: var(--bg-gray); }
.faq-arrow {
  font-size: 20px;
  font-weight: 400;
  color: var(--primary);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-answer {
  display: none;
  padding: 0 22px 18px;
}
.faq-answer p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-arrow { transform: rotate(45deg); }

/* 服务承诺 */
.promise-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.promise-item {
  text-align: center;
  padding: 32px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-white);
  transition: all var(--transition);
}
.promise-item:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--primary); }
.promise-icon { font-size: 36px; margin-bottom: 14px; }
.promise-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.promise-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(4, 1fr); }
  .cert-grid, .values-grid { grid-template-columns: repeat(2, 1fr); }
  .promise-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .nav-menu { display: none; flex-direction: column; position: fixed; top: 68px; left: 0; right: 0; background: var(--bg-white); border-bottom: 1px solid var(--border); padding: 16px 24px; gap: 4px; box-shadow: var(--shadow-md); }
  .nav-menu.open { display: flex; }
  .nav-link { display: block; padding: 12px 16px; }
  .nav-toggle { display: flex; }
  
  .hero { padding: 100px 0 60px; }
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  
  .about-intro, .contact-layout, .product-detail-inner { grid-template-columns: 1fr; gap: 40px; }
  .product-detail-inner.reverse { direction: ltr; }
  
  .section { padding: 56px 0; }
  .products-grid, .advantages-grid { grid-template-columns: 1fr 1fr; }
  .industries-grid { grid-template-columns: repeat(4, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form-box { padding: 24px; }
  .timeline::before { left: 70px; }
}

@media (max-width: 480px) {
  .products-grid, .advantages-grid, .values-grid, .cert-grid, .promise-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; text-align: center; }
  .cta-actions { flex-direction: column; }
  .pricing-grid { grid-template-columns: 1fr; }
  .about-highlights { justify-content: center; }
}